Mark Jaquith

APC Object Cache provides a persistent memory-based backend for the WordPress object cache. APC must be available on your PHP install.
An object cache is a place for WordPress and WordPress extensions to store the results of complex operations. On subsequent loads, 
this data can be fetched from the cache, which will be must faster than dynamically generating it on every page load.
The APC Object Cache backend is also compatible with <a href="https://wordpress.org/extend/plugins/batcache/" rel="ugc">Batcache</a>, the powerful full page caching engine that runs on WordPress.com
Be sure to read the installation instructions, as this is not a traditional plugin, and needs to be installed in a specific location.

APC Object Cache Backend

APC Object Cache provides a persistent memory-based backend for the WordPress object cache. APC must be available on your PHP install.

Md Obydullah

APCu/APC, is a free open-source opcode (operation code) caching plugin for PHP. If your host has installed APC/APCu cache this plugin allows you to clear the cache from within WordPress. Once activated, go to Tools -> APC Clear Cache to send the command to clear the APC/APCu cache.
The plugin returns either ‘Success’ or gives a detailed error message if it is unable to run the command successfully.
Original Author: TJ Stein, inspired by 2020Media. 2020Media first created the plugin and 2020Media doesn’t update their plugin since 3 years. For this reason I have released this plugin with some modifications.
👉 See Official GitHub page: <a href="https://github.com/mdobydullah/apc-clear-cache" rel="nofollow ugc">GitHub</a>

APC Clear Cache

This is a simple, single purpose plugin to clear the APC cache.

APC Object Cache Backend vs APC Clear Cache